Mighty Thor Vol 1#458

Thor II returns to Earth and in attempting to stop a bank robbery, accidentally gives Shatterfist his name, and is rescued by an elderly security guard. He goes to Avengers Mansion, and is greeted by Amora disguised as Sif. She seduces him, and entranced, sends him to attack Thor and save Sif. During their battle, Eric accidentally backhands Sif, sending Thor into a murderous rage. Odin, already aware of the problems, has gone to the forges of Nidavellir and has Eitri create a new weapon.